1. The receiver tube - Himin coated steel tube, delivers superb solar absorptance, and very low thermal emittance. It has a decisive influence on the overall efficiency of the plant. The heat transfer fluid circulating through the tube can be heated up to 300℃.
2. Himin coated steel tube consists of three parts: base material, coating-free area and solar selective absorption coating.
1. Himin coated steel tube has passed the inspection respectively by China National Solar Energy Center and German Fraunhofer Institute. Its absorption ratio is higher than 95%, and its emission ratio is lower than 8% at room temperatures. The coating has shown excellent performance in more than 15000 hours' aging test: the absorption ratio attenuation is lower than 3% and the emission ratio has had an increase less than 10%.
2. Technical Data
|Wall thickness: mm||4.0±0.3||Emission||≤8%(300℃)|
|Coating stability in the air||At 350℃,coating performance degradation≤2% after 2000 hours test|
Fraunhofer Institute test report
1. Industrial heating
2. Solar thermal power generation
3. Steam production, etc.